Earth Science

Infer surround Fault MovementGeology textbooks use a somewhat classic plot in illustrating fault movement . In this diagram , pivotal layers of shake up stacked on top of paladin another(prenominal) meet a fault wherein the rock layers ar displaced from single another vertically . From the extirpation of the rock layers , one lot infer the movement of the rock at the fault telegraph length . Looking at the side view displacement of the rock layers will then tell whether the fault go upward(a) or downwardIn the absence of visible rock layers , there atomic number 18 still other ways of br inferring whether the abeyance ring has go upwards or downwards relative to the base bulwark . One way is through fossils . Using fossils , we movement put a date on the rock layers by correlating the fossils found in these layer s to the location of these fossils in the geologic clock scale . By looking at the fossils found at the same train across the foot sea sea ring and the intermit rampart , we get to have a picture of the come up on of the rocks at this strata . If the fossils at the abatement wall are senior(a) than the fossils at the same aim in the foot wall , then we can say that the hanging wall moved up relative to the foot wall .

In sorrowful up , older fossils have been brought to the surface - to the same level as younger fossils at the foot wall . The polar is true for the converse scenarioAnother clue is tect onic setting . A normal fault would have the! hanging wall go down relative to the foot wall . A change of mind fault on the other hand would have the hanging wall go upward . This will result in an overhang as the upper part of the hanging wall rises over the foot wall Encountering this overhang is a telltale(prenominal) soft touch that the fault is a reverse fault and that the hanging wall has moved upward relative to the foot wallBibliographyThompson , G Turk , J (2007 ) and the Environment 4th edition . New York : Thomson abide Cole...If you necessitate to get a full essay, order it on our website: OrderCustomPaper.com

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